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How to treat oleander leaf spot? Detailed methods for disease control in medicinal plants
Oleander, scientific name Nerium indicum Mill., is a woody plant of the family Apocynaceae. Its leaves and flowers are used as medicine; it is toxic. It has the effects of strengthening the heart and promoting diuresis, eliminating phlegm, and killing insects. It is distributed in most provinces and regions across the country. Symptoms mainly affect the leaves. At first, small purplish-red spots appear at the leaf tip or leaf margin, and after expanding they form circular, semicircular to irregular brown lesions. The lesions have concentric rings. In the later stage the center fades to white, and the red-brown margin is relatively wide. When humidity is high, a grayish-brown mold layer can grow on both sides of the lesions, namely the pathogen's conidiophores and conidia. The disease
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How to Prevent Dry, Brown Leaf Tips on Spider Plants and Care Tips
When spider plants (Chlorophytum comosum) are grown in pots at home, they often develop dry leaf tips and gradually lose their glossy sheen. To keep a spider plant in good condition, take the following measures: Change the soil and repot. To keep the stems and leaves lush, change the soil and repot once every year in March. If the pot is fairly deep and the base fertilizer is sufficient, you can repot once every two years. When repotting, knock the plant out of the pot, cut off the dead and rotten roots and excess rootlets, replace with fresh humus-rich potting soil, and apply pieces of livestock hoof and horn or decomposed cake fertilizer as a base fertilizer. After planting, place it
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Golden Privet: Introduction to a New Colorful-Leaf Plant Variety
Golden Privet: also known as Howard's privet, Ligustrum japonicum 'Howardii', a new colorful-leaf variety in the Japanese privet series. Evergreen shrub or small tree; leaves leathery, thick, with a fleshy feel; new leaves in spring are bright yellow, turning golden yellow by winter, and some new leaves have cloud-like light green patches along both sides of the midrib or locally on one side, with bright and pleasing colors; internodes short, branches and leaves dense. The original species is distributed from west of Kanto in Japan, Honshu, Shikoku, Kyushu, and Taiwan, China. It likes light, is drought-tolerant and cold-tolerant, and can grow in acidic,
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Are large-leaf boxwood, Zhengmu, and Fufangshu the same plant?
Aliases: Zhengmu, Fufangshu, Dongqing Weimao. Family: Celastraceae. Category: Shrub. Latin name: Euonymus japonicus. Morphological features: Evergreen shrub or small tree. Height 5-6 m. Branchlets green, slightly 4-angled. Leaves simple, opposite, elliptical or obovate, with blunt teeth on the margins, dark green and glossy on the surface, leathery. Flowers in May, greenish-white, 5-12 in cymes, axillary at the tips of branches. Fruit ripens in October; capsule flattened-spherical, powdery green, splitting into 4 valves when mature, aril orange-red.
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Reasons and Solutions for Yellowing Leaf Tips on Variegated Spider Plants
What to Do When the Leaf Tips of a Variegated Spider Plant Turn Yellow?
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Is the ornamental plant Calathea rotundifolia (round-leaf prayer plant) toxic?
Is Calathea rotundifolia toxic?
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